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Model: NACHI 21307EK - Tapered hole spherical roller bearing>
Bearing Size
d = 35D = 80
B = 21
da(min) = 44
Da(max) = 71
ra(max) = 1.5
Mass = 0.64
Basic load rating: 69500
Rated static load: 76000
Limit speed（Grease lubrication）: 4700
Limit speed（Oil lubrication） 5900
